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Yunxiang Li
6e4aa08fa9
The retry loop for SRIOV reset have refcount and memory leak issue. Depending on which function call fails it can potentially call amdgpu_amdkfd_pre/post_reset different number of times and causes kfd_locked count to be wrong. This will block all future attempts at opening /dev/kfd. The retry loop also leakes resources by calling amdgpu_virt_init_data_exchange multiple times without calling the corresponding fini function. Align with the bare-metal reset path which doesn't have these issues. This means taking the amdgpu_amdkfd_pre/post_reset functions out of the reset loop and calling amdgpu_device_pre_asic_reset each retry which properly free the resources from previous try by calling amdgpu_virt_fini_data_exchange. Signed-off-by: Yunxiang Li <Yunxiang.Li@amd.com> Reviewed-by: Emily Deng <Emily.Deng@amd.com> Reviewed-by: Zhigang Luo <zhigang.luo@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.